I'd like the option of being able to move party members separately so that, for example, I can position my two knights directly in front of a door before opening it and have my two casters directly behind them.

That Dungeons & Dragons Tactics PSP game also had this...though perhaps taken to an extreme whereby each character had to be moved separately the entire way through, which while allowing for much strategy, also appears to have driven some folk to sheer madness in terms of interface and plodding along.

How about being able to move individual party members as an option? If you had to move them individually throughout the entire game, just think of the advertising copy : "Four thousand hours of incredibly intricate tactical gameplay !"